Apparatus for making spinning-bobbins.



PATENTED JULY 11, 1905.

I. F. PECKYL C. HIRD.

APPARATUS FOR MAKING SPINNING BOBBINS.

APPLIOATION FILED JULY 18,1904.

7 SHEETS-SHEET l.

PATENTBD JULY 11, 1905.

I. I'. PEGK & C. HIRD. APPARATUS POR MAKING SPINNING BOBBINS.

APPLICATION FILED JULY 18,1904.

7 SHEETS-SHEET Z.

M/ Wf- PATENTED JULY l1, 1905.

I. P. PEGK & C. HIRD. APPARATUS POR MAKING SPINNING BOBBINS.

APPLICATION FILED JULY 18,1904.

7 SHEETS-SHEET 3.

f, .1... im? w 7M,

110. 794,543. v 1111111111111 JULY 11, 1905.

' 1 P. P10K a; 0. 1111111.

APPARATUS POR MAKING SMNNING B0BB1NS.

APPLICATION FILED JULY 18,1904.

7 SHEETS-SHEET 4.

No. 794.543. PATENTED JULY ll, 1905. I. F. PECK & C. HIRD. APPARATUS FORMAKING SPNNING BOBBINS.

APPLICATION FILED JULY 18,1904.

7 SHEETS-SHEET 5.

No. 794,543. PATENTBD JULY Il, 1905. I. I. PEGK & C. HIRD. APPARATUS FORMAKING SPINNING BOBBINS.

APPLICATION FILED JULY 18,1904.

7 SEEETS-BHEET 6.

1 No. 794.543. PATENTED JULY 11, 1905.

1. 1*. PACK 1L o. 1111111.

' APPARATUS P011 MAKING 'SPINNING BOBBINS.

APPLICATION FILED JLY 18,1904A 7 SHEETSwSHEET 7,

,NTTED STATES Patented July 1 l, 1905.

PATENT Ormea..

IRA F. PECK, OF AUBURN, AND CHARLES HIRD, OF WOONSOCKET, RHODE ISLAND,ASSIGNORS OF THREE-EIGHTHS TO GEORGE F. WILLETT, OF NOR'WOOD,MASSACHUSETTS, THREE-EIGHTHS TO COLIN C. BELL, OF BROOKLINE,MASSACHUSETTS, AND ONE- FOURTH TO RUFUS B. GOFF, OF PROVIDENCE, RHODEISLAND.

APPARATUS FOR MAKING SPINNING-BOBBINS.

SPECIFICATION forming part of Letters Patent No. 794,543, dated July 11,1905,

Application iiled July 18, 1904. Serial No. 217,038.

To all whom it may concern: I

Be it known that we, IRA F. PECK, a citizen of the United States, and aresident of Auburn, and CHARLES HIRD, a subject of the King of GreatBritain, and a resident of VVoonsocket, county of Providence, State ofRhode Island, have invented an Improvement in Apparatus for MakingSpinning-Robbins, of which the following' description, in connectionwith the accompanying drawings, is a specification, like characters onthe drawings representing like parts.

This invention has for its object the production of an apparatus formaking bobbins on which yarn is spun, to be subsequently used in theshuttle of a loom. Such bobbins are made of wood and comprise anelongated barrel and an enlarged chambered head, and a longitudinal boreis provided to receive the spindle on the spinning-frame, and usuallythe exterior of the bobbin is tapered from the head to the adjacentportion of the barrel and shaped to present an annularly-steppedsurface. Very frequently the barrel is shaped to presenta series ofslightly-tapered sections inclined toward the head of the bobbin to moresecurely retain the yarn in position when spun upon the bobbin.

In the present invention the bobbins are formed from a cylindricalwooden blank, which is fed forward intermittingly a distance equal tothe length of a bobbin and then clamped in a rotating chuck orwork-holder. A movable head is provided with a series of tool-carriers,each provided with a suitable tool to act upon the blank, the toolsacting successively to form the longitudinal bore in the bobbin and thechamber in the head. The tool-carriers are arranged in proper order inthe head, and the latter is intermittingly moved to present one of thetool-carriers ata time into operative position to cooperate with therotating blank. I/Vhen a tool-carrier is in operative position,actuating means move the same longitudinally 1n the ldirection of theeach oth er.

length of the blank, so that the particular tool with which the carrieris provided will act upon the blank and perform its proper function,after which the tool-carrier is withdrawn and the head is then moved tobring the next tool-carrier into operative position. A common actuatingmeans is provided for the several tool-carriers and for a stop, which isalso carried by the head, the stop being operated to engage theleadingend of the blank when the latter is fed forward `and stop theblank in readiness to be clamped. While the interior of the blank isbeing acted upon by the appropriate tools, the exterior is roughshapedby a tool, which is moved longitudinally of the blank and in such a paththat the proper' contour is imparted to the blank. 'The rough-shapedbobbin is now ready to be separated from the rod-like blank, and this iseffected by a cutting-oliil tool. Before this is done, however, thebobbin is engaged by a transferrer, which supports it while it is cutoff, and immediately the transferrer removes it to one side andpositions it between two separated rotating' spindles in alinement withWhen the bobbin is positioned between them,the spindles are moved towardeach other to engage and clamp the bobbin between them, the bobbinthereupon rotating with said spindles while the transferrer returns toits normal position. While the bobbin is thus clamped androtated,finishing-tools are brought into position to act upon itsexterior to give the final shape to the barrel and head, and whenfinished the spindles are withdrawn from the ends of and release thebobbin, and a knock-off device removes the completed bobbin from theapparatus.

As will appear more clearly hereinafter,

bobbin is started there will be two at a time.

in process of making.

The various steps oi the process are conducted automatically and are sotimed with relation to each other that one instrumentality takes up itsappointed task at the proper instant and leaves the work in readinessfor the neXt step of the process. The stock is turned or otherwiseshaped into long cylindrical rod-like blanks in any suitable manner,which are delivered one by one from a suitable hopper into position tobe fed to the tools, the construction of the blank-delivery mechanismbeing such that when one blank has been fed forward another is presentedto immediately follow it. During the boring and rough-finishing of theWork the outer end thereofI is rotatably sustained in a suitable supportto prevent chattering or vibration of the Work, such support beingautomatically withdrawn when the bobbin is transferred to thefinishing-tools.

The various novel features of our invention will be fully described inthe subjoined specification, and particularly pointed out in thefollowing claims.

Figure 1 is a front elevation of the main portion of a machine formaking spinningbobbins and embodyingone practical form of our presentinvention, the work-. c., the bobbin in process of construction-and theiinishing-tools on the carriage being omitted in order to more clearlyillustrate the mechanism. Fig. 2 is a front elevation of the righthandend of the machine, showing the means for feeding the blank stock intoposition to be operated upon in the formation of the bobbins, it beingunderstood that taking Figs. 1 and 2 together a front elevation of thecomplete apparatus is shown. Fig. 3 is a top or plan view of themechanism shown in Fig. 1, the bobbin in process of construction beingomitted and the finishing-tools being indicated. Fig. 3a is a detail infront elevation of the guard which cooperates with the head in which thetool-carriers are mounted. Fig. 3b is an enlarged plan view of one ofthe linishing-tools indicated in Fig. 3. Fig. 3c is a similar view ofanother ofthe finishing-tools, to be hereinafter referred to. Fig. 4 isa transverse sectional view of the blank-feeding means on the line 4 5,Fig. 2, looking toward the left. Fig. 5 is a similar view on the line 45, but looking toward the right. Fig. 5 is an enlarged section on line 55, Fig. 2. Fig. 6 is an enlarged left-hand end elevation of a' portionof the apparatus shown in Figs. 1 and 3, the finishing mechanism beingomitted. Fig'. 7 is an enlarged transverse section on the line 7 7, Fig.1, looking toward the left, showing the construction of the head and themanner of mounting the tool-carriers therein. Fig. 8 is agreatly-enlarged longitudinal sectional detail on the line 8 8, Fig. 3,showing the head and tool-carriers and the mechanism for operating thelatter. Fig. 82L is a face View of the tool-carriers and tools theright-hand end of the head, Fig. 8. Fig. 9 is an enlarged longitudinalsection on the line 9 9, Fig. 3, but viewed from the back of themachine, showing the construction of the rotatable work-holder or chuckand the means for controlling the same. Figs. 9 and 9b are details ofparts Aof lthe mechanism shown in Fig. 9 and to be referred to. Fig. 10is a transverse section, enlarged, on the line 10 10, Fig. 3, lookingtoward the left and leaving out the work-holder or chuck and the meansfor supporting the work during the finishing operation, the mechanismillustrated serving to transfer the rough-finished blank from thework-holder to the finishing devices. Fig. 11 is a half-longitudinalsection and elevation of a completed bobbin; and Fig. 12 is a rear sideelevation, enlarged, of the support for the outer end of the work.

The various operative parts of the apparatus are supported on a suitableframe which is sustained on uprightlegs or standards A A, Fig. 1, and A'A', Fig. 2, the latter being connected by an elongated top plate A2, onwhich are bolted stands A3 A4, the former being shown in inner sideelevation in Fig. 4.

The mechanism for feeding the blank stock to the work-holder or chuckwill first be described.

A long screw-threaded shaft 1 is rotatably mounted in bearings 2 on thestands and provided with a pulley 3, Fig. 2, to receive a belt (notshown) driven from a suitable source of power, and a blank-feeder, shownas a sleeve 4, having an upturned "I-shaped projection 5, looselyembraces the shaft, Figs. 2 and 5, a bifurcated foot 6, depending fromthe sleeve, embracing a guide-rod 7, secured at its ends in the saidstands. An upwardly-inclined and rearwardly-extended shelf 8 is rigidlysecured to or forms a part ofthe stand A3 and has an upturned {iange 9,provided with a circular feed-opening 10, Fig. 4, above the shaft 1, thefiange being provided with a curved hoodlike extension 11 on its outerface concentric with the feed-opening, and a horizontal lip 12 is formedon the inner face of the stand in front of but separated from the lowerend of the shelf 8.

Referringto Fig. 2, a bracket 13 is bolted to the top plate A2 adjacentthe stand A3, and one end of a cord, chain, or other flexible member 14is secured thereto, said member passing down under the pulley w of aweight W and then up and over a guide-sheave 15 on the bracket, saidiiexible member leading thence through a hole 16, Fig. 4, in the standto the sleeve 4, to which it is secured. The top of the feeder-head orprojection 5 is in alinement with, the opening 10 in the shelfflange 9,and a cen tering-point 5X is preferably made on the leading end of theprojection, Figs. 2 and 5, for a purpose to be described. A rock-shaft17 is mounted in bearings 17X carried thereby as would appear looking ati on the stand A3 and an intermediate stand A5 YOO IOS

ISO

.to niove toward the right.

bolted to the top plate A2, the projecting end of the rock-shafthavingadepending arm 18, fast thereon, pivotally connected by a link 19with a wrist-pin 20, Fig. 4, o n a disk 21, mounted on a rotating shaft22, to be again referred to, so that each rotation of said shaft willoscillate the rock-shaft. Adjacent the stand A3 a collar 23 is securedto the rock-shaft and provided with an upturned laterally-enlargedsetting device or linger 24, which by means now to be described servesto operatively connect the blank-feeder 4 and threaded shaft 1. The saidfeeder is provided with a forwardly-extended tubular boss 25, in whichis slidably mounted a follower 26, Figs. 5 and 5, its rear end beingadapted to at times engage the thread on the shaft 1, so that rotationthereofl will move the sleeve or feeder 4 to the right, Fig. 2, thefront end of the follower having' a notch 27 in its under side. A

housing 28 on the top of the boss supports aV spring controlled detent29, the point of which is adapted to enter one or the other of twodepressions 30 in the top of the follower 26 to retain it in eitheroperative or.inopera tive position. Vhen the follower is retracted, asshown, the sleeve is free to move along the shaft 1, and at such time itis moved to the left, Fig. 2, by the weight W, acting' through theiexible member or connection 14; but when the follower is moved intocooperation with the thread on said shaft rotation of the latter willmove the blank feeder or sleeve to the right, elevating the weight.l/Vhen the feeder is moved by the weight to the left-hand end of itsstroke, the front end of the follower 26 is brought opposite the finger24, and when the latter is moved rearwardly by rocking of the shaft- 17the follower is pushed into the boss 25 until it engages thescrew-thread of shaft 1, whereupon the sleeve will be rapidly moved tothe right, said shaft 1 being continuously rotated. Such movement willcontinue until a releasing device or cam 31, adjustably secured to a rod700, engages the notch 27, the cam being diagonally arranged to readilyenter the notch and draw the follower forward and disengage it from thethreaded shaft as the sleeve 4 continues As soon as the follower andshaft are disengaged the sleeve is released from the control of theretractingshaft 1, and the weight l/V immediately reassumes control andbegins to move the sleeve to the left,

By adjusting the position of the releasing device 31 on the rod 700,which latter is fixed in the stands A5 Af, the length of the stroke ofthe feeder or sleeve 4 is determined and varied, as may be necessary.

An intermittingly-rotated shaft 32 is mounted in suitable bearingsin theend stands above and behind the retracting-shaft 1 and passes through abearing 32X, Fig. 2, in an upturned extension 33 of the stand A5, and onthe shaft 32 between the stands A5 A4 we have loosely mounted a secondshelf 8X; having an upturned iiange 9X, the latter having an opening(not shown) in alinement with the opening 10, Fig. 4, and a hood-likeextension 11 and forwardly-projecting lip 12X. A hub 34 on the underside of the shelf 8X loosely embraces the shaft 32, and a dependingtubular foot 35 loosely slides along a rock-shaft 36, to be referred to,to maintain the shelf 8X in par allelism with the shelf 8. This shelf 8Xis prevented from lateral movement byy an adjustable collar 37 on theshaft 32 at one side `of the hub 34, and by a let-off wheel or disk 38,adjustably secured to the shaft on the opposite side of the hub.

The blank stock is made up as long cylindrical wooden rods B ofsufficient diameter to permit the bobbins being made therefrom` meansfor delivering the blanks will now be described. l

Two of the let-off wheels`38 are provided, securely mounted on the shaft32 adjacent the inner edges of the shelves 8 and 8X, (see Fig. 2,) theperipheries of said wheels being provided with a series of substantiallysemicircular notches 39, and, as shown clearly in Figs. 4 and 5, thenotchedperipheries project above the upper faces of the shelves, saidnotches 39 being of such size as will easily receive one of the rods orblanks BX. Normally the leading rod or blank of the series supported onthe shelves will enter the uppermost notch in each let-olf wheel, sothat such blank cannot move forward until the said leased, it slidingdownward until it reaches the opening between the ends of the shelvesand the backs of the lips 12 and 12X, where it stops, and at the sametime the let-off wheels engage the neXt blank of the series and move.

it into the position shown in Figs. 4 and 5.

The release of the endmost blank by the let- Y olf means is eectedautomatically, as will be described, when the blank-feeder 4 is almostat the end of its retracting stroke, so that when the blank stops,as hasbeen described, it is `in the path of movement of the feeder-head IOOIIO

y justably secured to it near the stand A4 a collar 45, Fig. 2, havingattached to it a longitudinally-extended cam 46, the upper face of thecam rising gradually to the high part 47, (see dotted lines, Fig. 2,)this cam being in the path of a rearwardly-projecting toe 48 on the backof the extension 6 on the blank-feeder 4. (See Fig. 5.) Just before theblank-feeder reaches the end of its retracting stroke the toe 48 engagesthe cam 46 and depresses the latter, turning the rock-shaft 36 inthedirection of the arrow, Fig. 5, so that the pawl 41 is moved forward inengagement with the ratchet 40, advancing the shaft 32 and at-.

tached let-off wheels 38 far enough to move forward and release theendmost blank as the toe 48 rides over the high part of the cam. Thehigh part is made long, so that the toe will not run off the right handend thereof as the blank -feeder completes its retracting stroke, and assoon as said blank-feeder is moved by the weight W beyond the cam thelatter is released and the weight of the rockerarm 44 and link 43returns the rock-shaft 86 to normal position and retracts the pawl, thearm 44 bringing up against a stop 49, Fig. 5.

Remembering that a blank has been delivered into feeding position whilethe blankfeeder is completing its retracting stroke, it will bemanifest'that when the feeder next moves to the left` viewing Fig. 2,its head 5 will engage the right-hand end of the blank, the point 5Xentering the wood to give a irm hold thereon, and the continued movementof the feeder to the left will feed the blank along to the work-holder.Such feed movement continues until the rear end of the blank is beyondthe flange 9, so as to avoid interference with the delivery of the neXtblankinto feeding position, the setting device or finger 24 thenoperating to connect the blank-feeder A and retracting-shaft 1 by orthrough the follower 26, as has been described.

When a blank has been fed as far as possible by the blank-feeder, itscontinued feed movement is effected by the next blank as it is fed alongby the blank-feeder, such operation being continued as long as themachine is in operation and a supply of blanks is sustained on theshelves 8 and 8X. The clearance between the front end of the shelf 8Xand the lip l2 is suHicient to permit the passage of the upright portionof the feeder-head 5 as the blank-feeder 4 moves back and forth.

As will appear hereinafter, the blank is fed step by step and held byand to rotate with the work-holder and released thereby alternately, thefeed taking place when the blank is released, and I will now describethe workholder and the controlling means therefor.

Having reference more particularly to Figs. 1, 3, and 9, the top plateAX, supported by the legs or standards A, has secured to it at one end aplate C, having upturned bearings C for bushings c, Fig. 9, in which arerotatably mounted two concentric tubes GX 0X, the latter having anannular flange c at one end adjacent one of the bushings c, andcheck-nuts c2, screwed upon it adjacent the opposite end of the otherbushing, to prevent longitudinal movement of said tube. The latter isprovided with a fast pulley c3 to receive a belt C3, Fig. 1, by means ofwhich the tube cx is continuously rotated, the longitudinal axis of thetubes being coincident with the longitudinal center of a blank infeeding position. Beyond the ange c the tube 0X is threaded to receive aconical cap c4, which fits over a workholder' or chuck C2 of a commonform and shown herein in Fig. 9 as a tubular split'chuck mounted withinthe tube 0X and abutting against one end of the inner tube CX, vwhich islongitudinally movable in the tube 0X. When the tube CX is moved to theright, Fig. 9, the chuck is forced against the conical cap and closed,and if a blank be in position at such time the chuck will firmly hold itto be rotated in unison with the tubes CX 0X, frictional engagement ofthe cap and chuck effecting rotation thereof in unison. The outer end ofthe tube 0X, projecting toward the blank-feeding' mechanism, has fastupon it a collar c5, on which are fulcrumed bell-cranks 0G, the shortarms whereof extend through slots c7 in the tube into openings c8 in theinner tube CX, (clearly shown in Fig. 9,) while the long external armsof the bell-cranks cooperate with an annularly-grooved cone c, looselymounted on the said tube 0X. When this cone is in the position shown inFig. 9, the work-holder or chuck C2 is clamped or closed, and when thecone is moved to the right the resiliency of the chuck will cause it toopen and the controlling-tube CX will be moved to the left.

It is to be borne in mind that the apparatus shown in Fig. 9 is viewedfrom the back of the machine, so that the incoming blank would be fedinto the tube CX at the end at which the chuck-controller is mounted,the said tube steadying and guiding the blank to the chuck. A horizontalstud 01, projecting outward from one of the bearings C, slidablysupports a sleeve c, having an upturned yoke 012, which cooperates withthe cone c to position the same, a roller or other stud G13, dependingfrom the sleeve, entering a cam-groove c on the periphery of a disk 015,fast on the shaft 22, hereinbefore referred to, and supported inbearings o16 017, Fig. 9.

The clutch-controlling cam is of the socalled one-revolution7 type-'z'.e., it makes one revolution and stops, then makes another revolutionandstops, and so on, the mechanism for effecting this operation not beingof our invention, broadly, and will be given a brief description, theshaft 22 being arranged to make one revolution for every revolution ofthe tool-carrier head to be described.

Referring' to Fig. 9, a fast clutch member IOC 018 is secured to theshaft adjacent a coperating member 019, formed von a sliding sleeve 1020, loose on the shaft and recessedto receive a spring s, which acts toseparate the clutch members, the opposite end of the sleeve hav-v ingfast on it a pinion 0111, and a stop-pin 022 projects beyond the end ofthe sleeve at one side of its center, said pin being adapted to enter asocket 023 in an annular plate 021 (shown separately-in Fig. 911) andattached to the end of the bearing 017.

The clutch is open in Fig. 9, and'at such time the pin 022 is held inthe socket by the spring s, so that the shaft 22 and the chuck-controlling cam thereon are locked from movement.

A yoke 021 is fulcrumed at 0211 on the main frame of the machine andcooperates with the sleeve 020 to move it longitudinally, the yokehaving a depending extension 027, provided with a lateral bevel-facedlug 028. The latter is in the path of movement of a beveled trip 0211 ona disk 03, fast on the main or principal shaft D of the machine,rotatably supported in suitable bearings dx, Figs. 1 and 9, the disk andtrip being shown in face view,Fig. 911.

A large gear D, fas-t on the shaft,meshes with an intermediate smallgear D', rotatable on a stud CZ, secured in the cross-girth A'1 of themain frame, the gear D in turn meshing with the pinion 021 to drive thesame, the bearing 011 being formed as a part of the cross-girth. Whenthe rotation of shaft D brings the trip 021 into engagement with the lug028, the yoke is rocked to slide the sleeve 020 to the left, Fig. .9,withdrawing the stop-pin 022 from the socket 0211 and bringing theclutch members into coperation, so that theshaft 22 will be rotated, thepin 022 riding on the face of the plate 021 and maintaining the clutchoperative after the trip has passed beyond the lug 028. The chuck orwork-holder C2 is opened, the blank is fed forward to operativeposition, and the chuck is closed upon it by the time the pin 022 comesopposite the recess 023, and thereupon the spring s expands, separatingthe clutch members as the pin enters said socket. Such revolution of theshaft 22 also acts, through the arm 18 and link 19, to rock the shaft17, as has been described, to operate the setting'device 211 if theblank-feeder 4 has reached the end of its feed movement.

Referring to Figs. 1 and 3, the frame at the left-hand end of themachine has secured to it ley AS is rot-ated continuously by a belt (notshown) and through the gearing referred to effects the constant rotationof the main shaft D at a comparatively slow speed, and We have D2, isfixed on the main shaft and meshes with a small gear d1, fast on a shortshaft d3, rotatably mounted in a bearing ax on the main frame, a largergear (Z2, fast on the shaft outside the frame, in turn meshing with apinionl cl. This pinion is fast on a sleeve/5, Fig. 8, rotatable andlongitudinally slidable on a clutch-shaft fl, rotatably mounted incrossgirths a7 as of the frame, one member Z7 of a clutch being formedon the outer end of the sleeve,its coperatingmemberdgbeingformed oh theinner end of a hub CZ, vfast on the shaft, and having a radial arm d10,extended therefrom and provided near its free end with an inturned studdu. A rigid bracket af on the end of the frame (and omitted in Fig. 1)receives and forms a supporting-bearing for the outer end of theclutchshaft Clo, which is intermittingly rotated and is arranged to makeone revolution and stop. a pin d1 on the inner end of the sleeve Z5entering a recess CZ" (see dotted lines, Fig. 8) at the end of thebearing t7 to permit a'spring (not shownlto expand and separate theclutch members, substantially as described with relation to theone-revolution shaft 22 and the clutch device for operating the sameAand shown in Fig. 9. The direction of rotation of the shaft disindicated by the arrow 701, Fig. 6.

A circular disk di having a series of peripheral notches d1", (shown inFig. 6 as six in number,) is secured to a shaft d20, rotatably mountedat its outer end in a stand A12, secured to the top of the main frame,the disk Z111 being located above thewrist-pin or stud C211 on therotatable arm d10, and by reference to Fig. 6 it Will be seen that therelative arrangement of said stud and the notches in the disk is suchthat for every revolution of the shaft ZG the stud du will enter one ofthe notches Z9 and will rotate the disk and its supporting-shaft d20through one-sixth of a revolution. The shaft d20 has keyed to it tworather thick and circular disks TKT', constituting a head, the disksbeing annularly flanged att', respectively, the liange t being providedwith six peripheral notches tx, two of which are shown in Fig. 8, thedisks being rotatably supported in two rigid bearings A13 A11,respectively, and provided with caps @13 w11, respectively. The bearingA11 and its cap, together with the disk T, are shown clearly in Fig.811. A series of circularly-arranged and longitudinally-slidablecarriers are mounted in the disks, and, referring to Figs. 7 and 8, wehave shown six of such carriers, t2 t3 t7, the latter having secured toor mounted upon its inner end, viewing Figs. 3 and 8, a stop t8. The

IOO

IIO

other five of the carriers have fixedly mounted in their inner endssuitable tools to act upon the interior of the blank and form thereinthe longitudinal bore and the chamber in its head. Each of the carriersis longitudinally grooved to receive a spline or key t1", (see Fig. 7,)so that the carrier can move longitudinally in the head, but is heldfrom rotation therein, and each carrier is also provided with a collart9. having a radial lug or stop tu, the collars being located adjacentthe inner face of the disk T when a carrier is retracted.

A better understanding of the several tools necessary to bore andchamber the bobbinblank will be gained from an inspection of Fig. 1l.wherein a completed bobbin is shown having a chamber o in its head V anda central bore c. extended longitudinally of the bobbin through thebarrel V thereof and reduced in diameter near the tip of the bobbin, asat o2, the reduced portion being arranged to fit the tip of the usualspindle in the spinning-frame. The direction of rotation of the shaftd20 and the tool-carrier head is shown by arrow 7 O2, Figs. 6 and 8, andthe first tool which is brought into operative position as regards theblank is mounted in the carrier t2, viewing Fig. 8a. This tool u2 is astarting tool or drill to properly locate the beginning of thelongitudinal opening through the blank, the subsequent tools acting tocomplete the opening. After the tool u2 has performed itswork it iswithdrawn from the blank, as will be described, the head is rotatedthrough one-sixth of a revolution, and the next tool ug is -brought intooperative position and is moved forward to act upon the blank, this toolor drill acting to rough out the large portion e of the bore, afterwhich the tool is withdrawn, the head is given another partial turn, andadrilling or boring tool u4 is brought into operation to drill the smallportion @2, Fig. 11, of the bore. At the time the tool a3 operates uponthe bore o it also partly forms or roughs out the chamber fu. Aboreiinishing tool a5, mounted on the carrier t5, is preferably arrangedto finish the bore, and, finally, a reamer or similar tool u, mounted onthe tool-carrier t, is brought into operative position to ream out andfinish the chamber c in the head of the bobbin. Thus in the presentembodiment of my invention five tools are used to complete the internalconfiguration of the bobbin, and these tools are brought into operativeposition oppositethe work one after another by step-by-step rotativemovement of the head,and they are individually moved toward and awayfrom the work, by means to be described, to perform their desiredfunctions.

The step-by-step rotation of the tool-carrier head is effected, as hasbeen explained, by the coperation of the intermittingly-rotating stud Zuand the disk dlg, and the timing of the parts of the apparatus is suchthat when one of the blanks is being fed forward through the open chuckor work-holder, as described, the stop t8 will be in its operativeposition in alinement with the center of the chuck and it willhave beenmoved .forward to its extended position to stop the feed movement of theblank at the proper point.

The bearing A13 and the bed An, connecting said bearing with thebearingA, are grooved at am and a, respectively, `(see Figs. 8 and 7,)to receive a slidebar e, having rackteeth eX on its under face andslidable in parallelism with and below the shaftdzo. A longitudinalupright rib e, secured to or forming a part of thev slide or rack bar e,is provided near its outer end with a notch e2 (see Fig. 8) in the pathof movement of the radial projections or stops t and so arranged thatwhen one of the stops enters the notch the inward longitudinal movementof the rack-bar will through its engagement with the projection t movethe connected tool-carrier in unison with the rack-bar, the carrier atthat time sliding in the ends T T of the head. A guard TX (shown infront elevation in Fig. 3L and n-shaped) is rigidly secured to the bedAll, adjacent and at the right of the path of movement of theprojections $11(see Figs. 1, 3, and 8,) so that no one of the severalcarriers can accidentally move inward until it is between the separatelegs of the guard, and when the projection is in such position it canenter the notch @2 in readiness to be slid inward by the movement of therack-bar. Locking-notches 12 are made in the periphery of the flange t,as best shown in Fig. 7, six of such notches being herein shown andalternating in angular position with the projections tu, the latterbeing alined with the notches X in the flange t of the inner end of thehead. A latch 60, Fig. 7, is secured to a rock-shaft 6l, mounted` on thebed A and having fast upon it a rocker-arm 62, provided with apeculiarlyshaped depending extension 63, terminating in a toe 64, heldbya spring 65 in the position to cooperate with a tappet 66, secured toor forming part of' a collar 67, fast on the onerevolution shaft CZ".The tappet 66 is so disposed angularly with relation to the arm all thatwhen the stud Zu enters one of the notches d1" of the disk d the tappet66 will raise the toe 64 and through the intervening connection rock theshaft 6i to withdraw the latch from one of the notches 12, therebyreleasing the head and permitting its rotation through one-sixth of arevolution. As soon as the tappet wipes past the toe 64 the spring 65throws the latch 60 against the periphery of the flange t, and as thestud al leaves the notch du the latch snaps into the lockingnotch 12,then opposite thereto. The inner end of the rack-bar e is supported in aguidebearing al, and the adjacent end of the rib e is cut away at e3,Fig. 8, to clear the flange t'; but the notches X in said ange are sorio IZO

supports at e4 asegment-gear e5, in mesh with the teeth @X of the rackor slide bar e, the segment-gear being pivotally connected at e with abifurcated link c7, jointed at e8 to a slidebar E, (clearly shown inFig. 1,) sustainedin guide-bearings @7 as in the lower portions of thestands a7 co8, said slide-bar being square or polygonal incross-section, as shown in Fig. 7. A depending lug c on the slide-bar Ecooper-- ates with a cam-groove E on the drum D3, hereinbefore referredto, so that as said drum rotates the slide-bar will be reciprocated andthrough the cooperation of the segment-gear e5 and rack-bar e the'latter will be reciprocated to slide a tool-carrier in and out in thehead.

The cam-groove D`J is shaped to give the requisite throw to eachtool-carrier in succession in order that the tool or other devicemounted thereon may properly perform its function, one completerevolution of the drum D3 conforming to a complete revolution of thetool-carrier head.

Inasmuch as the advance movement of the head should be effected at theinstant the tool-carrier-actuating means just described return to normalposition, (shown in Fig. 8,) we have provided means to set the clutchmembers Z7 als. into operation by or through the return movement of therack-bar e, and to this end a trip @lo (see Fig. 8) is pivoted at e in alongitudinal slot @12 in the outer end of the slide-bar,the trip beingfree to rock on its pivot c in one direction, but being held fromrocking movement in the opposite direction by a stop-pin @13. The faceof the trip is inclined or beveled to wipe over the double beveled endel* of a bellcrank lever @15, fulcrumed at el on the stand A12, saidlever having one of its arms forked to cooperate with the clutch-sleeved5, loose on the shaft d6. When the rack-bar e is moved inward, or tothe right viewing Fig. 8, the trip ew' will lift over the cam or beveledend el4 of the bell-crank lever; but on the return movement of therack-bar the trip will engage the cam e and depress that arm ofthebell-crank lever` @15, throwing its yoked arm and the sleevev d5 tothe left, Fig. 8, to set the clutch, and thereupon the rotation of theshaft al is set up and maintained until the shaft has made onerevolution.

It will be understood that'in Fig. 8 the clutch has just been set by themeans described and the shaft d is making its single revolution to bestopped automatically as soon as the stop-pin Zw can enter the recessd17and gitudinally along the cam-groove.

holder has a sleeve-like hub 74, which slides permitting the spring (notshown) to separate the clutch members Z7 cls.

By providing a number' of holes in the slot portion @12 of the rack-bar,both for the ful-1 Crum-pin e of the trip and for the stop-pin cl3, wecan adjust the trip to operate at an earlier or later instant on theinward movement of the rack-bar. I

After the stop t8 has been moved inward to stop the feed of the blank atthe proper point the blank is clamped in the chuck or workholder, thestop is withdrawn into the position shown in Fig. 8, and then the headis advanced one step to bring the starting-tool u2 (which mayconveniently be a stub-drill)into alinement with the center' of theblank, and on the next reciprocation of the rack-bar c the said toolwill be moved inward to cooperate with the work, and it will then bewithdrawn 'to permit the next advance of the head, andthen the secondtool will be moved into and these various tools have been operating tointernally shape the bobbin the latter has been rough-shaped externallyby means now to be described.

Referring more particularly to Figs.` 3, 9,

and 10, the top of the main frame has bolted toits rear side, near thechuck or work-holder, acam-plate 70 (shown partly in section and brokenof in Fig. 9) to more clearly illustrate the shape of the cam-groove7]., formed on the inner face of the plate, a stud 72, rearwardly.

extended from a tool-holder 73, traveling lon- Thetooland rocks upon acylindrical guide-bar 75, rigidly mounted in bearings 76 77 on theframe, and a iiexible member, preferably a chain 78, ,has attached toone of its ends a IOO IIO

weight 79,'the chain leading upward over a guide-sheave 8O on thebearing-post 76 and thence substantially horizontally to the toolholderto which it is connected, the chain passing to the left viewing Fig. 9from the toolholder around a guide-sheave 8l on the post 77, thence downaround a movably-supported The weight 7 9 acts to move the tool-holder73 to the right viewing Fig. 9 and to maintain the follower 86 againstthe edge of the cam 87. A roughing-tool 88, Fig. 3, is mounted in thetool-holder and extends therefrom into position to engage therexteriorof the blank when held in proper position by the chuck or work-holder.rl`he tool 88 at the beginning of its cutting action upon the blank isin the position shown in Figs. 3, 9, and 10, and as the cam 87 rotatesthe free end of the follower-arm 85 is depressed to act through thechain 78 and gradually move the tool-holder 73 longitudinall)v7 to theleft, the stud 72 following the cam-groove 71 from its lower to its highpoint, so that as the tool travels along the work it will rough out theexterior' of the latter to give it a substantially conical head portionand a cylindrical barrel. When the operating stroke of the tool-holder73 is completed, the high point 89 of the cam 87 will have been reached,and from such point the cam drops more quickly along the curve 90 to thecircular part or dwell 91 of the cam. (Shown in Fig. 10.) As thefollower 86 travels from the high point 89 along the incline 90 of thecam the weight 79 returns the toolholder to starting position, and whilethe follower coperates with the dwell portion 91 the tool-holder remainsat rest, giving an opportunity for the blank to be fed forward therequisite distance for the formation of the next bobbin.

v We desire to call attention to the fact that theintermittingly-rotatable head in which the tool-carriers are mounted isshown in the same angular position in Figs. 1 and 3; but in Fig. 8 it isshown in a different position, with the stop 258 in the latter figure inposition to cooperate with the blank as it is fed forward through theopen chuck or work-holder, the change in position being made to moreclearly show the different tools.

When the blank is fed forward through the open work-holder or chuck, itsleading end passes into a socketed head 301 of a worksupport 302, Figs.10 and 12, shown as an upright metallic plate clamped by a bolt 303 in alongitudinal recess 304, formed in the upper end of an elongated bar305. The socketed head 301 is made annular in shape, as clearly shown inFig. 10, to permit the stop t8 to enter the same and engage and stop theleading end of the blank at the proper point, and a 'radial opening 306is made in the head to permit the roughing-tool 88 to travellongitudinally of the blank without engaging the work-support. The bar305 is provided with a hub 307, Fig. 12, which is rigidly secured to arod 308, which is longitudinally movable in a sleeve-bearing 309, havingears 310, which are bolted to the under side of the top of the mainframe near the bearing-post 76. A spring 85 is coiled around the rodbetween the hub 307 and the adjacent end of the bearing 309 to normallyforce the rod and bar 305 to the left, Fig. 12, and toward the chuck C2,the head 301 being in axial alinement therewith. A collar 311, fast onthe opposite end of the rod 308, limits its springinduced movement, andone of the ears 310 is provided with a hanger 312, carrying' a sheave313. A chain or other flexible connection 314 is secured by a pin 315 tothe bar 305, passing thence over the sheave 313 and down to a rockingfollower-arm 316, fulcrumed at 317 on a bracket 318, secured to the mainframe. (See Fig. 10.) This follower-arm extends beneath the shaft D andis provided with an upturned toe 319 (see dotted lines, Fig. 10) in thepath of a tappet 320, fast on said shaft, the tappet acting to depressthe arm 316, and thereby to pull down on the chain 314 to move the bar305 and the worksupport away from the chuck C2 against the action ofspring 350.

In order to prevent any swinging movement of the work-support 302 thelower end of the bar 305 bears against the shaft D and is slidablyconnected therewith by a foot 321, which partly embraces the shaft, asshown in Fig. 10. Referring to said Fig. 10 it will be seen that the cam87 is just about to begin the movement of the roughing-tool 88 along theblank and the tappet 320 is acting upon the toe 319 to retract thework-support; but as the shaft DX turns the toe is released and thespring 85 moves the work-support into position, so that the outer end ofthe blank is supported in the socketed head 301. The blank rotates inthe head, but is prevented thereby from chattering or vibrating -whilethe roughing-tool and the several boring-tools are acting upon theblank, as hereinbefore described, it being manifest that suchboringtools can move forward and back through the annular head 301. Whenthe rotation of shaft D again brings the tappet 320 into engagement withthe toe 319 to retract the work-support from the outer end of therough-finished and bored bobbin, the latter is in readiness to beremoved to the finishingtools.

After a bobbin has been bored and rougl finished it is cut 0H at its tipend from the blank and automatically transferred to the finishingmechanism, which imparts to the bobbin its external finished contour,and the finished bobbin is automatically removed from the machine, theblank being fed forward into position for the formation of a new bobbinwhile the rough-finished bobbin is being finished, and we will firstdescribe the finishing mechanism and thereafter the automaticmeans fortransferring the rough-finished bobbin to said finishing mechanism.

Referring to Figs. 1 and 3, the top of the main frame is extendedforward to form a table A20, on which are bolted base-plates M N, theformer having upright standards forming IOO IIO

by suitable fast collars pf, the stem of the yoke depending below theshaft and being' fulcrumed at m5 on an ear m on the baseplate 'M, thefoot of' the extension constituting a follower m7, which travels in agroove m8, formed in the circumference of' a camdisk m, fast on a shaftm10, rotatably mounted in suitable bearings on vbrackets or wings 100,101, 102, and 103, secured to or forming part of the table A20. As theshaft m10 makes one complete revolution the spindle MX will be movedoutward or to the right, viewing Figs. 1 and 3, into operative position(shown in said figures) and after a dwell in such position will be movedoutward to release the then-finished bobbin. The base-plate N supportsan elongated bearing n for a rotatable spindle NX, having a tip nX,adapted to enter the small bore previously made in the tip of thebobbin, the said spindle being moved in and out in the bearing by meansof a yoke 11,2, fulcrumed at 01" and having a follower 717 cooperatingwith the path 01,8 of a cam-disk n, fast on the shaft m10 at theright-hand end thereof, Figs. 1 and 3, the cam-grooves m8 as beingsimilar, but reversely located, so that the two spindles, which are inalinement, will be moved toward or from each other simultaneously, theyoke n2 being operatively connected with the spindle NX in such a manneras has been described with relation to the yoke m2 and spindle MX. Thelatter spindle is a driven spindle, as will be manifest, while thespindle NX is what may be termed a deadspindle, as it rotates only by orthrough frictional engagement of'its tip with the bobbin. Thespindle-controlling shaft m10 has fast upon it a gear m11, in mesh witha gear m12, fast on a counter-shaft m13, supported in bearings on thebrackets 101.102, the counter-shaft having' an attached sprocket m,driven by a sprocket-chain m15 in engagement with a second sprocket mion the main shaft DX, a sprocket-chain and gears being preferably usedin order to insure a positive and accurately-timed rotation of thecounter-shaft.

An upright segmental arm m1 is provided with an elongated hub m18,loosely mounted on the counter-shaft between fast collars m17 thereon,the curved upper edge of the segmental arm being provided withgear-teeth'lr/,20, and a roller or other stud m21, projecting' laterally fromfhe'arm, (see Fig. 1,) enters a cam-groove m22 (see Fig. 10) in a diskm23, fast on the spindle-controlling shaft m10. The

table A20 has rigidly secured to it between the base-plates M N a heavybed HX, transverse to the length of the main frame of' the machine andprovided with undercut and parallel horizontal guideways /LX (clearlyshown in Fig'. 1) for guide-ribs It, arranged on the sides of a carriageH, which latter carries a rack /L' (see Figs. 1 and 10) in mesh with thesegmental gear m2". As shown in Figs. 3 and 10, the carriage is providedwith three undercut transverse grooves 7a2 las /L4 to receive the postsof suitable tool-holders A cutting-offl tool Ht is secured to atool-holder LO, clamped in adjusted position in the groove LJ, thecutting-ofi' tool being' so adjusted that when the carriage is movedtoward the back of the machine said tool will engage and cut off therough-finished bobbin at the desired point,`the adjustment provided bythe groove enabling bobbins of various lengths to be made by themachine. The groove LS receives the holder 7b3() of what may be termed abarrelfinishing tool H3, the edge of the tool being shown 4in plan viewin Fig. 3C, said tool acting upon the barrel of the rough-finishedbobbin to finish the same, while such bobbin is. clamped between androtates with the finishing-spindles MX NX, as hereinbefore described.The other finishing-tool H2, the cutting edge of which is shown in planin Fig'. 3b, is mounted upon the holder la, adjustably seated in the 9 Dgroove 7a2, and inasmuch as any suitable toolholders or posts .may beused we have not described the same in detail, as such tool-holders perse form no part of our invention.

After the rough-finished bobbin has been transferredv to and clampedbetween the spindlesMX NX the rotation of the cam-disk m23 operates tooscillate the segment-gear and the carriage H is reciprocated, the topHfacting upon the base or head portion of the bobbin on one stroke ofthe carriage, while on its opposite stroke the barrel-finishing tool H3acts upon the bobbin andv externally finishes the barrel thereof, andreferring to Fig. 10 it will be seen that the two finishing-tools arelocated in diderent horizontal planes, and, as illustrated, the tool H2acts above the axis of the bobbin, while the tool H3 acts below it. Thebobbin having been finished, the camgrooves m8 as operate to separatethe supporting-spindles, and the finished bobbin is then picked up anddischarged from the machine. For this purpose a rock-shaft if is mountedin bearings /L on the front end of the carriage, said rook-shaft havingsecured to it two rearwardly-extended and parallel arms 7L?, provided attheir rear ends with substantially U-shaped seats its. one end oftherock-shaft has secured to it at /Lw a flexible band or strap 7L, whichpasses around a portion of the periphery of thedisk and is connected atits lower end to a bellcrank k12, fulcrumed on a stud hw on the bracket101, (see Fig. 1,) the depending arm la of' the bell-crank being locatedin the A disk ft onI IOO IOS

path of a tappet-cam L15, (see Fig. 10,) rigidly secured to thecounter-shaft m13. The tappetcam is so set on this counter-shaft that itwill engage the toe of the bell-crank and quickly rock the sanne just asthe finished bobbin is released by the spindles l X NX, such rockingmovement of the bell-crank acting, through the fiexible connection 7111,to quickly turn the disk h2 in the direction of the arrow 200, Fig. l0,to swing the knock-o arms /i7 upward and forward, the seats las engagingthe finished bobbin, lifting the same, and throwing it forward out ofthe machine and into any suitable receptacle. The finishing-tool H2 hasits cutting edge shaped to give the external contour to the base or headV oi' the bobbin, as shown in Fig. 11,and the stepped configuration ofthe barrel V' of the bobbin is effected by the finishing-tool H3, aswill be manifest Jfrom a comparison of Figs. 311 and 3 with Fig. 1l. Bychanging the shape of the cutting edges of these tools the bobbin willbe finally shaped in accordance with such change, so that, it is to beunderstood our invention is not in any manner restricted to theformation of bobbins having only the configuration herein shown.

The means to transfer the rough-finished bobbin (when cut oPf from theblank) into position between and to be clamped by the spindles MX NXwill now be described.

An upright standard G is erected on the top of the main frame midwaybetween the axis of rotation of the work-holder and the alined spindlesMXNX, said standard being surmounted by a tubular boss Q to receive thestud Q of a rocking guide Q2, having in its vertical face a longitudinalundercut guideway Q2, (see Fig. 3,) a slide-bar Q4, shaped incross-section to correspond with the guide way, being sustained by andlongitudinally movable in the rocking guide Q2. Atits upper end theslide-bar is turned over at Qand provided with alongitudinally-adjustable stop Q6 to limit the downward longitudinalmovement ofthe slidebar and to take up any wear which may develop in themechanism for operating the slide-bar, the lower end oi' the slide-barhaving a boss Q7 parallel to the axis Q of the guide. A rod Q8 isfixedly held in said boss and extends at right angles to the slide-barin parallelism with the centers of the chuck and finishing-spindles. Twohubs Qg are adjustably secured to the rod Q8 and depend therefrom inparallelism with the slide-bar, each hub having secured to it a pair ofspring-fingers Q10, (shown clearly in Fig. 10,) the free ends of thefingers being oppositely bent and then liared, as at Q11. The rod Q8 isextended through the boss Q7 and forms a pivotal connection between theslide-bar Q4 and an oscillating arm Q12, fast on a rock-shaft Q13,mounted in a bearing Q1i on the standard Gr. A pinion Q15 is secured tothe rock-shaft Q13 and meshes with the teeth Q16 of a reciprocatingrack-bar Q17, held in'engagement with thepin-F ion by guide-rolls Q18,Fig. 10, suitably mounted on the standard G. The lower end oftherack-bar passes through a slot 250 in thetable A20 of the main frame andis pivotaliy connected at Q1 with a lever Q20, fulcrumed on the shaftm10. The forwardly-extended leverarm carries a lateral roller or otherstud Q21, which enters a cam-groove Q22 in the side of a disk Q23, faston the counter-shaft m13.

The shape ofthe cani-groove is clearlyshown in Fig. 10, and in saidfigure we have shown in dotted lines the two positions of the slidebarQ4 and its attached fingers, the dotted-line position at the rightshowing the fingers in position to embrace a rough-finished bobbin andto support it as soon as the latter is cut of'f from the blank by thecutting-off tool H4, hereinbefore described. The left-hand dottedposition of the guide-bar and fingers shows the latter in position toplace the cut off and rough-finished bobbin between the spindles MX NXwhile said spindles are being moved toward each other to clamp thebobbin between them. The slide-bar Q1 and fingers carried therebyconstituteatransferrer, and when the rack-bar Q17 is in mid-position(shown in Fig. l0) the oscillating arm Q12 is in vertical position, aswill be the transferrer, midway between the chuck or work-holder and theclamping-spindles. The stud Q21 is shown as traversing the circular part600 of the camgroove, and consequently the rack-bar and transferrer willremain at rest in mid-position until the roll enters the part 601 of thecamgroove, the latter dropping toward the center of the cam, so that therear end of the lever Q2O will be elevated, lifting the rack-bar Q17 androtating the pinion and its attached shaft Q13 in the direction of thearrow 650. This rotative movement brings the transfer-rer into theright-hand dotted-line position, Fig. l0, it being understood, ofcourse, that the slide-bar Q4 during such movement slides longitudinallyin the rocking guide Q2, while the latter rocks on its fulcrum-stud Q'.As the transferrer completes its movement into the right-handdotted-line position, Fig. l0, the flared ends Q11 of the spring-fingersQ10 wipe over the rough-finished bobbin, and the latter is cut ofi fromthe blank, while the roll Q21 traverses the dwell portion 602 of thecamgroove Q22, the dwell being necessary to enable the fingers toproperly embrace the bobbin before the latter is cut ofi". As soon asthe cutting-ofi' operation is completed the roll Q21 enters the risingportion 603 of the camgroove, and the rack-bar Q17 is lowered far enoughto swing the arm Q12 from the righthand dotted-line position into theleft-hand 'dotted position, Fig. 2, the transmitter-fingers carrying thebobbin into position between the clamping-spindles, and while the latterare moving toward each other to clamp the bobbin the dwell portion 604of the cam- TOO tion one bobbin is being bored and roughfinishedexternally and the other bobbin is being finished externally by meanshereinbefore described, and the finished bobbin is thrown out of themachine by the means described as soon as the clamping-spindles separateto release it.

The effective length of the rising part 603 of the cam-groove Q22 isequivalent to the combined effective lengths of the falling portions 601605, as will be manifest from Fig. 10, as the latter part moves thearm'612 from the left to center position and the former part 601 movessaid arm from center position to righthand dotted-line position.

The two ,pairs of transferrer-fingers are set on the supporting-rod g8in such position that each pair will grasp the barrel of the bobbin, andwhile the tips of the fingers actually move through short arcs as theyapproach or recede from a bobbin the arcs are comparatively Hat and theresiliency of the fingers enables them to readily embrace and clasp thebobbin.

Vire may employ any suitable means to return the rock-shaft L of theknock-off device to normal position, and in Fig'. 3 we have shown aspring 81 coiled around the shaft between one of the arms if and theleft-hand bearing L, the ends `of the spring being secured to said armand bearing, respectively, and the spring is so wound as to turn, therock-shaft h5 oppositely to the arc 200, Fig. 10. This spring actsas acheck to prevent undue movement of the knock-off arms when the bobbin isejected or discharged from the machine and alsoreturns the arms tonormal position in readiness to act upon the next bobbin to be ejected.

In Fig. 3 the carriage H is shown as having an opening H5 between theportions grooved at if h3, such opening being beneath theclamping-spindles and affording a means of escape for the chips cut fromthe bobbin by the iinishing-tools H2 H3.

In the apparatus hereinbefore described the entire handling of the workis automatic from the time the blank-stock is delivered to the feedmechanism to the time the finished bobbin is discharged or ejected, andthe mechanism is so arranged that two bobbinsare being operated uponsimultaneously-one bobbin being rough-finished and bored While anotherbobbin is being finished.

Various changes or modifications may be made in the details andarrangement of the apparatus herein shown and described Withoutdeparting from the spirit and scope of our invention.

Having fully described `our invention,what we claim as new, and desireto secure by Letters Patent. is-

l. In apparatus of the class described, a support for a reserve supplyof cylindrical blanks, a longitudinally-movable, reciprocating blank.-

feeder, gravity-actuated on its feed-stroke,

means automatically and intermittingly connected with the blank-feederto positively retract it, intermittingly-acting means to deliver a blankfrom the support into the path of and to be engaged by the feeder on itsfeedstroke, a rotating work-holder adapted to receive through it andalternately clamp and release a blank, the latter being fed through thework-holder when open, and means to act upon the blank independently ofthe blankfeeder and determine the extent of feed.

2. In apparatus of the class described, a rotating tubular work-holder,provided with clamping means, a blank-feeder, means to effect by gravityits feed movement to feed a blank forward through the work-holder, aretracting device for the feeder, comprising a threaded,continuously-rotating shaft extending the length of and parallel to thepath of movement of the feeder, and a member on the latter to coperatewith said shaft, coperation of said member and the shaft effecting acontinuous retracting movement of the blankfeeder to the starting-pointof its feed-stroke, and means to effect automatically such coperationwhen the blank-feed er reaches a predetermined point on itsgravity-actuated stroke.

3. In apparatus of the class described, a reciprocating blank-feeder, acontinuously-rotating, threaded retracting-shaft, a follower tocooperate therewith and mounted on the feeder, means independent of theshaft to cause forward movement of said blank-feeder,means toautomatically effect cooperation of the shaft and follower at apredetermined point on the feed-stroke of the blank-feeder, to retractthe latter, and a releasing device to automatically disengage saidfollower from the shaft when the retractive movement of the feeder iscompleted.

4. In apparatus of the class described, a reciprocating blank-feeder, acontinuously-rotating, threaded retracting-shaft, a follower tocooperate therewith and mounted on lthe feeder, gravity-actuated meansto cause forward movement of the blank-feeder, means to automaticallyeffect cooperation of the shaft and follower to retract the feeder, andan adjustable releasing device to automatically disengage the shaft andfollower when the blankfeeder has been retracted to a predeterminedpoint. Y

5. In apparatus of the class described, a rotating work-holder, areciprocating` blankfeeder adapted to feed a blank to said work- IOO ich

TIO

holder, gravity-actuated means to cause feed retracting means and theblank-feeder at predetermined points in the path of movement of theblank-feeder, and means to positively engage and deliver a blank intoposition to be engaged and fed by the blank-feeder when the latter hasbeen retracted.

6. In apparatus of the class described, a rotating Work-holder, areciprocating blankfeeder adapted to feed a blank to said rotatingWork-holder, gravity-actuated means to cause feed movement of saidfeeder, positively-retracting means, including a continuously-rotating,threaded shaft, separate devices to automatically effect cooperation anddisengagement, respectively, of the retracting means and theblank-feeder at predetermined points in the path of movement of thelatter, means to sustain a plurality of blanks in reserve, andintermittingly-operating let-off mechanism to positively engage andeffect delivery of the endmost blank from-said sustaining means into thepath of the blank-feeder when retracted, the let-off mechanism beingcontrolled as to its operation by the blank-feeder in its retractivemovement.

7 In apparatus of the class described, a rotating work-holder, areciprocating blankfeeder adapted to feed a blank to said rotatingWork-holder, gravity-actuated means to cause feed movement of saidfeeder, positive retracting means, separate devices to automaticallyeffect cooperation and disengagement, respectively, of the retractingmeans and the blank-feeder at predetermined points in the path ofmovement of the latter, let-off mechanism to engage a reserve blank andmaintain it out of the feeder-path, and means governed by the retractivemovement of the blankfeeder to operate said mechanism to deliverpositively a blank into position to be fed before the blank-feederbegins its feeding movement.

8. In apparatus of the class described, a reciprocating blank-feedergravity-actuated on its feed-stroke, means to automatically retract itWhen its feed-stroke is completed, means to sustain a series of blanksin reserve, let-off mechanism to positively engage and deliver suchblanks singly into the feeder-path when the latter is retracted, andmeans' governed by the blank-feeder to effect automatically theactuation of the let-off mechanism.

9. In apparatus of the class described, a tubular, rotating, Work-holderadapted to receive a blank, means to cause said Work-holder to clamp andrelease a blank, a blank-feeder reciprocable in alinement With theWork-holder and actuated by gravity on its feed-stroke, means toautomatically and temporarily cooperate With and retract it when itsfeedstroke is completed, means to sustain aseries of blanks in reserve,let-off mechanism to positively engage and deliver such blanks singlyinto the feeder-path When the latter is retracted, and means governed bythe blankfeeder to effect automatically the actuation of the let-offmechanism.

10. In apparatus of the class described, a rotating work-holder toreceive a blank, means to open and close said Work-holder, to releaseand clamp a blank, a blank-feeder reciprocable in alinement With theWork-holder, to feed a blank thereto, adjustable means to sustain aseries of blanks in reserve, intermittingly-operative let-off mechanism,including rotative members, to normally hold the endmost blank of theseries and to engage and move it into position to be fed, and actuatingmeans for said let-off mechanism, including a paWl and ratchet toactuate said rotative members, operated by the blank-feeder whenretracted in readiness to engage a fresh blank. 11. In apparatus of theclass described, a ro-` tating Work-holder, a rotatable head, comprisingtwo rigidly-connected ends each havinga series of circularly-arrangedapertures, toolcarriers longitudinally movablev in the apertured ends ofthe head and prevented from axial rotation, a radial lug fast on eachtoolcarrier, a fixed, tranverse guard adapted to slidably engagesimultaneously all but one of the lugs and prevent longitudinal movementof their tool-carriers, actuating` means for the latter, including areciprocating member having a transverse notch to be entered by the lugof the free tool-carrier, to move the latter out and back, means tointermittingly and positively rotate the head a predetermined amount tomove one carrier after another into released position in alinement Withthe Workholder, whereby the tool-carriers are in succession advanced andretracted by coperation with the said actuating mechanism, and a notchedange on the head into and out of engagement With which saidreciprocating member slides, to lock the head when a toolcarrier isadvanced and retracted.

12. In apparatus of the class described, a rotating Work-holder, a headhaving a circularly-arranged series of longitudinally-movabletool-carriers mounted therein, actuating mechanism to coperate with onetool-carrier at a time and move it tovvard and from the Work-holder,intermittingly-acting means, including a notched disk rotatable With thehead and a revolvingv stud to coperate With the disk, to rotate the headstep by step to present the tool-carriers singly into position to bereciprocated by said actuating mechanism in axial alinement with theWork-holder, a rotating shaft, connections, including a clutch,

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between it and the revolving stud of said intermittingly-acting means tooperate the latter, separate connections between the shaft and the saidactuating mechanism, and a device positively operated by the latter whena tool-carrier has been retracted to set the clutch and start theoperation of the means for rotating the head.

13. In an apparatus for making bobbins, means to hold and rotate abobbin-blank, boring and rough-shaping tools to act internally andexternally, respectively, upon the blank, separable, aXiallyalinedrotatable spindles adapted to receive between them and clamp arough-shaped bobbin, controlling means for said spindles, a carriageadapted to reciprocate ina path at right angles to said spindles andblank-holding means, a cutting-oft1 tool on the carriage to cut therough-shaped and bored bobbin from the blank, blank-feeding means, twooppositely-facing finishing-tools on the carriage, to finish the headand barrel of the bobbin when clamped by and rotating with saidspindles, and means to transfer to the latter a rough-shaped bobbin whencut off from the blank.

14. In an apparatus for making bobbins, separate means located adjacenteach other to rough-shape and finish a bobbin, respectively, a swingingtransferrer located between them and having spring-fingers to embrace abobbin, between its ends, an upright standard on which the transferreris vertically movable, and mechanism to move said transferrer verticallyand laterally and bodily at right angles to the axis on which it swings,to effect engagement of the spring-fingers with a roughshaped bobbinbetween its ends and transfer the same to the finishing means, andthereafter to retract the transferrer to normal intermediate position.

15. In apparatus for making bobbins,an upright standard,bobbintransferring means supported thereby and comprising alongitudinally-movable, laterally-swinging member having afinger-support extended at right angles thereto, a slidable connectionbetween the standard and the said member, the latter being pivoted onsaid connection parallel to the finger-support, spring-fingers dependingfrom and fixedly mounted on said support, to embrace a bobbin betweenits ends, and an oscillating arm mounted on a fixed fulcrum andpivotally connected with said movable member, to raise and lower thesame and swing it in a plane at right angles to the axis of the arm.

16. In apparatus for making' bobbins,an upright standard,a guide-blockfulcrumed thereon, an elongated bar slidable in said guideblock, pairsof spring-fingers movable with and sustained by the bar, an oscillatingshaft mounted on the standard below and parallel to thefulcrum of theguide-block, and an arm fast on the shaft and pivotally connected withthe lower end of the bar, whereby oscillation of the` shaft will swingthe bar and slide it longitudinally up and down in the guide-block. 17.In apparatusfor makingbobbins,means,

i including a rotating work-holder, to bore and adapted to swing andmove longitudinally in a vertical plane at 'fight angles to saidworkholder and clamping-spindles, resilient lingers carried by saidmember and movable thereby to grasp a bobbin when bored and roughshapedand transfer it into position between the clamping-spindles, and anoscillating arm pivotally connected with and to actuate the swingingmember.

18. In apparatus of the class described, a rotating work-holder toreceive and intermittingly clamp a blank, means to feed the latterthrough said work-holder when unclamped, a work-support having anannular, socketed head to receive and sustain the outer end of theblank, astop movable into position through' said annular head, to engagethe leading end of the blank, and determine the length of its speedmovement, and tools to act upon the blank while clamped in thework-holder and having its outer end rotatably sustained by thework-support.

19. In apparatus of the class described, a rotating work-holder toreceive and intermittingly clamp a blank, means to feed the latterthrough said work-holder when unclamped, a work-su pport having anannular, socketed head to receive and sustain the outer'end of theblank, a stop movable into position through said annular head, to engagethe leading end of the blank, and determine the length of its speedmovement, tools to act upon the blank IOO while clamped in thework-holder and having its outer end rotatably sustained by theworksupport, and means to automatically retract said work-support fromthe end of the blank.

20. In apparatus of the class described, a rotating work-holder adaptedto receive and clamp the work, means to feed the latter through thework-holder, a stop to engage the vleading end of the work and determinethe extent of feed movement thereof. a worksupport having an annular,socketed head to receive the leading end of the work and to sustain itwhile permitting its rotation, tools to bore and to rough-shape theexterior of the work while clamped in the work-holder and sustained bythe work-support, means to yieldingly retain the latter in its operativeposition, and means to retract the work-support from cooperation withthe work when the operation of the tools has been completed.

21. In apparatus of the class described, a rotatable work-holder adaptedto receive and intermittingly clamp the work, means to feed the workthrough said work-holder when unclamped, a work-support having asocketed,

